#app {

  .main-container {
    height: 100%;
    transition: margin-left .28s;
    position: relative;
  }

  .sidebar-container {
    -webkit-transition: width .28s;
    transition: width 0.28s;
    width: 70px;
    background-color: #131c25;
    height: 100%;
    position: fixed;
    font-size: 0px;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1001;
  }
}